18799557

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 29736960

約数和(自身を除く): 10937403

約数列:

[1, 3, 7, 21, 43, 109, 129, 191, 301, 327, 573, 763, 903, 1337, 2289, 4011, 4687, 8213, 14061, 20819, 24639, 32809, 57491, 62457, 98427, 145733, 172473, 437199, 895217, 2685651, 6266519, 18799557]

約数ペア:

[(1, 18799557), (3, 6266519), (7, 2685651), (21, 895217), (43, 437199), (109, 172473), (129, 145733), (191, 98427), (301, 62457), (327, 57491), (573, 32809), (763, 24639), (903, 20819), (1337, 14061), (2289, 8213), (4011, 4687)]